Definition of azimuth

1: an arc of the horizon measured between a fixed point (such as true north) and the vertical circle passing through the center of an object usually in astronomy and navigation clockwise from the north point through 360 degrees

2: horizontal direction expressed as the angular distance between the direction of a fixed point (such as the observer's heading) and the direction of the object

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azimuthal

azimuthally

Recent Examples of azimuth from the Web

The large yellow underwing moth, for instance, can use the moon’s azimuth (or horizontal bearing) to help orient its flight—a skill that other creatures, such as sand fleas, also employ to great effect.

The large yellow underwing moth, for instance, can use the moon’s azimuth (or horizontal bearing) to help orient its flight—a skill that other creatures, such as sand fleas, also employ to great effect.

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'azimuth.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of azimuth

Origin and Etymology of azimuth

Middle English, from Medieval Latin azimut, from Arabic al-sumūt the azimuth, plural of al-samt the way